Harmonic damper pulley removal tool

• US 6,665,918 B1
• Filed: 02/18/2003
• Issued: 12/23/2003
• Est. Priority Date: 02/18/2003
• Status: Expired due to Fees

• Current Assignee: Lisle Corporation
• Original Assignee: Lisle Corporation
• Inventors: Williams, Danny
• Primary Examiner(s): Hail, III, Joseph J.
• Assistant Examiner(s): SHANLEY, DANIEL G
• Application Number:
  US10/368,106
• Time in Patent Office: 308 Days
• Field of Search: 292/44, 292/45, 292/53, 292/56, 292/58, 292/59, 292/60, 292/61, 292/62, 294/265, 298/980.8
• US Class Current: 29/259
• CPC Class Codes: B25B 27/023 using screws
• CPC Class Codes: Y10T 29/49698 Demounting
• CPC Class Codes: Y10T 29/5383 having fluid operator
• CPC Class Codes: Y10T 29/53861 Work-engager arms along or parallel to screw
• CPC Class Codes: Y10T 29/5387 Pivotal arms
• CPC Class Codes: Y10T 29/53878 Tubular or tube segment forms work-engager

Abstract

A tool for removal of a pulley from a shaft includes articulated arms mounted on a hub with a thrust bolt provided to drive the hub and attached arms outwardly from a shaft on which the pulley is mounted. The arms comprise jaw members which in combination with wedge members ensure maintenance of the jaw members in mechanical contact with the pulley to thereby effect its removal from a shaft.

Claims

1. A tool for removing a pulley having a center hub and multiple, radial, spaced spoke members emanating from the hub and connected to a rim, said tool comprising, in combination:

a center hub member having an axial, centerline axis and an axial, threaded throughbore and further including a plurality of radial, equally spaced arms;

a plurality of jaw members equal in number to the number of hub member spaced arms, each of said jaw members being pivotally attached to a separate arm and each jaw member pivotal toward the axial axis, said jaw members each including an outside face and an inwardly directed gripping hook for engaging the center hub of a pulley;

a drive bolt assembly in the threaded throughbore of the center hub member for adjustably impinging on a mounting shaft for a pulley; and

a separate wedge member mounted on the outside face of each jaw member for retaining each jaw member wedged against the pulley center hub.

2. The tool of claim 1 wherein the wedge members are magnetically mounted on the jaw members and axially adjustable.

3. The tool of claim 1 or claim 2 wherein the wedge members include lateral tabs for retaining the wedge members on the jaw members.

4. The tool of claim 1 wherein the drive bolt includes a thrust rod axially mounted for engagement by a drive bolt.

5. The tool of claim 2 wherein the wedge members include a magnet.

6. A tool for removing a pulley having a center hub and multiple radial spaced spoke members emanating from the center hub, said spoke members connected to a rim, said tool comprising in combination:

a center hub member having an axial, centerline axis and an axial, threaded throughbore and further including a plurality of radial, equally spaced arms;

a plurality of jaw members equal in number to the number of hub member spaced arms each of said jaw members being pivotally attached to a separate arm and each jaw member pivotal toward the axial axis, said jaw members each including an outside face and an inwardly directed gripping hook for engaging the center hub of a pulley;

a drive bolt assembly in the threaded throughbore of the center hub member for adjustably impinging on a mounting shaft for a pulley; and

a wedge member mounted on the outside face of each jaw member for retaining each jaw member wedged against the pulley center hub, at least one of said wedge members magnetically mounted on the associated jaw member and said wedge member being axially adjustable on the jaw member.

7. A tool for removing a pulley having a center hub and multiple radial spaced spoke members emanating from the center hub, said spoke members connected to a rim, said tool comprising in combination:

a center hub member having an axial, centerline axis and an axial, threaded throughbore and further including a plurality of radial, equally spaced arms;

a plurality of jaw members equal in number to the number of hub member spaced arms each of said jaw members being pivotally attached to a separate arm and each jaw member pivotal toward the axial axis, said jaw members each including an outside face and an inwardly directed gripping hook for engaging the center hub of a pulley;

a drive bolt assembly in the threaded throughbore of the center hub member for adjustably impinging on a mounting shaft for a pulley; and

a wedge member mounted on the outside face of each jaw member for retaining each jaw member wedged against the pulley center hub, at least one of said wedge members including lateral tabs for retaining the wedge member mounted on the associated jaw member.